Carburetor regulating mechanism



s, 1932. J, BARELS 1,866,076

CARBURETOR REGULATING' imam-ISI Filed July 7. 1928 .72217265 Bare/s Patented Judy 5, 1932 l JAMES BAnELsoF CHICAGO, ILLINOIS oARBUREToR YnnenLATIN@'ianomilusmf Appncation flied July 7, 1928. `Serenna. 291,117Q

This invention relates to carburetorv regulating mechanism, and its primary object is to provide simple and novelmeans for preheating air'which passes through the carbu- 5 retor and to regulatel this preheated air. Y

Another object is to provide improved means, including thermo-sensitive elements,

:for regulating the preheated air inthe carbu-v retor according to the atmospheric temperature and according to the temperature of air and gases which pass fromthe exhaust to the carburetor.

Other objects and advantages will appear throughout the'progressf of the specification.

ln the accompanying drawing which illustrates a selected embodiment of the invention, the views are as follows:

Fig. 1 is a detail elevation. of an automobile trame and motor embodying the invention; y

in Fig. 1;

Fig. 3 is a detail sectional view of a portion of the intake line and the regulating valves;

means for operating the valves; Y

Fig. 5 is a detail enlarged view showing the thermo-sensitive means as applied to an automobile frame.

Referring to the drawing, 6, 6 designates the side bars oit' an automobile frame which support the transverse members 7, 7 carrying the motor 8. A carburetor 9 ,having a float chamber 10'is connected to the manifold 11, which is operatively connected tothe motor in a manner well known in the art.

A pipe line 12 isconnected to the motor exhaust line 13 and to the carburetor 9, for furnishing preheated air or gas to the carburetor. A casing 14 is fixed to the inside of one of the side bars 6, Figs. 4 and 5, and a pair of thermo-sensitive elements 15 and 16 secured to the casing 14 as clearly shown in Fig. 4. A rod 17 is pivotally connected to the thermosensitive element.15 and to the arm 18 of a bell crank 19. The bell crank is pivoted to a part of the casing 14 at 20, and has an arm 21 to which the rod 22 is pivotally connected.

Fig. 2 is a top plan view of the parts shown Fig. 4 is a detail sectional view showing thek Vheat in the compartment 3 2, into which the hfotgas and air y.from the carburetor exhaust sensitive @lenient 15mY asiightaegfee @mises relatively wide movement of the rod 22. "It will thus be seen that lateral movement lof the thermo-sensitiveelement willcause vertical movement of the rod 22. krllfiethermo-sensiact same `manner in which the element` v15` operates the rod 22.`

Thepipe line 12 is enlarged at 24 and has a i pair of butterfly-valves 25 and V26 r'evolubly tveelement 16 operatesthefrod 23 in the ex; c

mounted therein, as shown in Fig. 4. The f valve 25 is provided with a-link'27 which is pivotally connected to the endvof the rod 22, c

and the valve 26 has a link 28 which' is pivotally Aconnected to the rod 23. ,Movement of the thermo-sensitive elements 15 and 16 will therefore open and close thevalves 25 and 26 according tothe temperature insideofthe casing 14. VThe carburetor 9 has an exhaust line 29 k'whichvleads to the interiorof the casing 14, and the Vexcess vhotgaseswhich pass through the carburetor are expelled :through the opening 30 in the bottom of the casing 14,

ment 16 is adapted to be controlled by the atmospheric temperature in theV compartment 33, andthe element 16 is controlled by the line 29 is discharged. When theatmospheric temperature is relatively hot it isdesirablethat less heat be furjnishedto the carburetor from the line 12v', so the thermo-sensitive element 16 will operate .to close the valve 2,6 `to lshut oi`f"some of the Yheat coming romthe exhaust vline 13. Also, y

when themotor isoperating at high speed and is relativelyhot it is desirable that some of vthe heat coming through the lim-,12 be Shut :,of. --I the-hot gases comingout of the pipe 429 are hotter than ordi-narilyf required, lthe lthermo-,sensitive element 15 will operate to ,turnV the valve 25 andy shut oifso'me ofthe heat coming throughythe line 12. Thetheri nio-sensitive metal is s et to operate at v'certain temperatures andthe rods 22and 23 are set to operate the butteriiyvalves at predeterum mined temperatures.

' thermo-sensitive and novel construction which permit reguld-y tion of the heat to the carburetor and the casing contains most of the parts and may-be easily and quickly applied to any device to Which it is applicable.V Changes may be made in the `form, construction and arrangement of the parts Without departing from the spirito lie invention or sacriiicing any of its'advantages,' and the right is hereby reserved to make all suchv changes as' fairly fall Withinthe scope of the following claims:

I`c-laim: Y

1 l. The, combination with .an automobile motor havingan exhaustV line and a 'carbuL retor, of a pipe line connecting the exhaust to the carburetor, for passing heated gases from the exhausty line' `through the carburetor, means controlled by atmospheric temperature for regulating the heat passing through VLthe pipe line, and means controlled by the motor having an exhaust line and a carburetor, of a pipe line connecting said exhaust line and said carburetor, a casing connected to the automobile frame, a pair of thermosensitive elements arranged inside the casing, a'divisional Wall in said cas-ing and separating said elements, a pair of valves revolubly mounted in said pipe line, a link connected to each of said valves, a bell crank having a .pair of arms and pivotally mounted in said casing, a rod connected to one of said elements ,and to one armY of said bell crank, a second arm connecting the link to the other arm of ksaid bell crank, anda carburetor exhaust linel discharging on one ofsaid elements for operating oneof said valves, said other element being controlled by atmospheric temperature and operating said other valve.

AMES BARELS.

temperature of the .heated gasespassing 'Y through the carburetor for regulating t the amount of heated gases coming through said pipe line. Y

2. The combination with? an Vmtomobile motor having an'exhaustline anda `carb11- retor, or' aV pipe lineconnected to said exhaust line and to said carburetor for establishing direct communication between the exhaust line and theV carburetor, a pair of valves i revolubl-y mounted in said ,pipe line,'a

element y controlled atmospheric temperature for Voperating one of said valves, and a second thermo-sensitive element operated bythe heated gases passing through the carburetor for controlling the other of said valves.

3. vThe combination'with `an automobipv r motor having an exhaust line 'anda carburetor, of a pipe line connected to said exhaust line andtosaidcarbureton' a pair of valves in saidipipe line, 'a Vthermo-sensitive element controlled by atmospheric temperature for controlling lone of said valves to contr-ol the heated gases passing through said pipeline, a secondthermo-sensitive elementya carburetor l. y exhaust line having its outlet adjacent to said second thermo-sensitive element, and means i connected to said second element and tothe Y other of said valvesjto Voperate saidla-st named valve according to the heat coming through the carburetor exhaust line.

Ll. The combination with anautomobile iso 

